Olympic Quizziz

Find the pattern of number pyramid and fill in the number at the top.

How many cubes are there in total?

• 7

• 8

• 9

• 10

Find the sum of: 1+3+5+7+9+11 =

If b - 28 - 29 = a - 27 - 38, then b ⚪ a

• ＞

• =

• ＜

• Unsure

Find the largest number to fill in the blank:

20 > 36 + 12 - ( )

Find the pattern:

21 - 12

32 - 23

43 - 34

_____

What is the answer of the next nunber sentence?

20 + 21 + 22 + 23 + 24 + 25 + 26

The answer of this number sentence is a _____ number

• Odd

• Even

There are 5 bicycles and cars parking at the parking lot with 14 wheels in total. There are ____ bicycles and ____ cars.

• 1 bicycle, 4 cars

• 2 bicycles, 3 cars

• 3 bicycles, 2 cars

• 4 bicycles, 1 car

In a subtraction number sentence, if the minuend decrease (减少 minus） 3 and subtrahend increase （增加 add） 3, the difference will ______.

• • + 3

• + 6

• - 3

• - 6

There are several books on the shelf. From left to right, dictionary is the 18th. From right to left, dictionary is the 16th. How many books are there in total?

• 35

• 34

• 33

• 32